One of them also had a different error (in addition to the casting issue):

I0303 10:49:29.274178 192253952 scheduler.cpp:96] Executing scheduled query pack_somepack_audit-process-events: select h.md5, p.path, p.cmdline, p.cwd, p.gid, p.egid, p.uid, p.euid, p.pid, p.parent, p.time, u.username, eu.username as e_username, g.groupname, eg.groupname as e_groupname from
hash as h, process_events as p, users as u, groups as g join users as eu on p.euid=eu.uid join groups as eg on p.egid=eg.gid where h.path = p.path and u.uid = p.uid and g.gid = p.gid and p.cmdline NOT LIKE "%docker-credentials%" group by h.md5;
I0303 10:49:29.317302 192253952 <http://user_groups.mm:56]|user_groups.mm:56]> Error with OpenDirectory results: An invalid attribute type was provided.
I0303 10:51:08.775894 192253952 dynamic_table_row.cpp:123] Error casting parent () to BIGINT

Any thoughts on the OpenDirectory error?